Total Bridges
27,040
Public highway bridges in California
State profile · Below national median SD
California bridge safety
Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in California — drawn straight from the FHWA National Bridge Inventory.
- 27,040
- Public bridges
- 32.5%
- Good condition
- 4.6%
- Poor condition
- 4.6%
- Structurally deficient
Good Condition
32.5%
8,777 bridges rated 7-9
-17.5pp vs 50% benchmark
Poor Condition
4.6%
1,244 bridges rated 0-4
Structurally Deficient
4.6%
1,244 bridges flagged for repair priority
-2.4pp vs national avg 7.0%
California vs national bridge condition
California — Good condition share 32.5%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
California — Structurally deficient share 15.3%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
Bridge inventory deck-condition mix — California (FHWA NBI)
Counties (58)
Alameda 800 Alpine 32 Amador 62 Butte 441 Calaveras 106 Colusa 211 Contra Costa 686 Del Norte 96 El Dorado 196 Fresno 929 Glenn 242 Humboldt 398 Imperial 448 Inyo 67 Kern 686 Kings 168 Lake 129 Lassen 108 Los Angeles 3937 Madera 250 Marin 217 Mariposa 109 Mendocino 357 Merced 532 Modoc 87 Mono 49 Monterey 390 Napa 160 Nevada 135 Orange 1224 Placer 347 Plumas 170 Riverside 1142 Sacramento 775 San Benito 76 San Bernardino 1465 San Diego 1707 San Francisco 170 San Joaquin 666 San Luis Obispo 408 San Mateo 393 Santa Barbara 429 Santa Clara 1041 Santa Cruz 203 Shasta 500 Sierra 65 Siskiyou 423 Solano 383 Sonoma 613 Stanislaus 390 Sutter 120 Tehama 452 Trinity 194 Tulare 599 Tuolumne 128 Ventura 511 Yolo 282 Yuba 136
California vs nearby ranks
Adjacent states on the structurally deficient leaderboard (lower share = better)
States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below California on the same metric.
39
Ohio
4.54% top marginal rate
34
New Jersey
4.59% top marginal rate
06
California
4.60% top marginal rate
05
Arkansas
4.71% top marginal rate
53
Washington
4.81% top marginal rate
Bridges Needing Most Attention in California
Six lowest-condition bridges in California, ranked by composite NBI rating. Each is inspected at least every 24 months.
SPRING CREEK RD
PoorOver: FALL RIVER
0.5 MI N OF MCARTHUR RD, Shasta, CA
Built 1950 Load: 2.7 t ADT: 50
ORESTIMBA ROAD
PoorOver: CCID MAIN CANAL
0.1 MI E DRAPER RD, Stanislaus, CA
Built 1919 Load: 2.9 t ADT: 684
CLARK STREET
PoorOver: M.I.D. CANAL
0.1 MI WEST OF ROAD 26.0, Madera, CA
Built 1955 Load: 3.2 t ADT: 200
GULLING STREET
Structurally DeficientOver: MIDDLE FORK FEATHER RIV
0.2 MI S SH 70, Plumas, CA
Built 1954 Load: 3.2 t ADT: 10,046
AVENUE 10
PoorOver: COTTONWOOD CREEK
JUST E/O ROAD 23, Madera, CA
Built 1950 Load: 3.6 t ADT: 50
S BISHOP AVE
PoorOver: CRESCENT DITCH
0.64 MI S/O MT WHITNEY AV, Fresno, CA
Built 1950 Load: 3.9 t ADT: 125
All Bridges in California
INTERSTATE 5
FairOver: BNSF RY,AMTRAK,METROLINK
12-ORA-005-16.36-LGNH, Orange, CA
Built 1959 Load: 23.7 t ADT: 344,000
SILVERADO CANYN RD
FairOver: SILVERADO CANYON CREEK
4.4 MI. E/O SANTIAGO ROAD, Orange, CA
Built 1947 Load: 23.7 t ADT: 2,000
DONNER PASS ROAD
FairOver: SOUTH YUBA RIVER
NORTH OF YUBA DRIVE, Placer, CA
Built 1929 Load: 23.7 t ADT: 250
HAMPSHIRE ROCKS RD
FairOver: SOUTH YUBA RIVER
1.7 MI E OF CISCO, Placer, CA
Built 1928 Load: 23.7 t ADT: 100
HAMPSHIRE ROCKS RD
FairOver: SOUTH YUBA RIVER
2.3 MI E OF CISCO, Placer, CA
Built 1929 Load: 23.7 t ADT: 100
LOCUST RD
FairOver: CURRY CREEK
1.0 MILE N OF BASELINE RD, Placer, CA
Built 1940 Load: 23.7 t ADT: 739
STATE ROUTE 36
FairOver: NORTH FORK FEATHER RIVER
02-PLU-036-8.84, Plumas, CA
Built 1966 Load: 23.7 t ADT: 5,500
AUBURN BOULEVARD
FairOver: ARCADE CREEK
0.5 MI N GREENBACK LANE, Sacramento, CA
Built 1927 Load: 23.7 t ADT: 26,461
POWER INN RD
FairOver: ELDER CREEK
0.1 MI S OF GERBER RD, Sacramento, CA
Built 1970 Load: 23.7 t ADT: 20,750
INTERSTATE 40
FairOver: PALO VERDE WASH
08-SBD-040-149.27, San Bernardino, CA
Built 1967 Load: 23.7 t ADT: 7,450
INTERSTATE 40
FairOver: MANZANITA WASH
08-SBD-040-146.12, San Bernardino, CA
Built 1967 Load: 23.7 t ADT: 7,200
INTERSTATE 15 SB
FairOver: MOJAVE RIVER
08-SBD-015-75.31-BSW, San Bernardino, CA
Built 1961 Load: 23.7 t ADT: 22,500
INTERSTATE 15 NB
FairOver: MOJAVE RIVER
08-SBD-015-75.31-BSW, San Bernardino, CA
Built 1961 Load: 23.7 t ADT: 22,500
BASE LINE ROAD
FairOver: LYTLE CREEK
2.1 MI W RTE I-215, San Bernardino, CA
Built 1969 Load: 23.7 t ADT: 19,000
SHEEP CREEK ROAD
FairOver: CALIFORNIA AQUEDUCT
0.9 MI S OF PALMDALE RD, San Bernardino, CA
Built 1971 Load: 23.7 t ADT: 1,685
NAT TRAILS HWY
FairOver: DOLA DITCH
2.1 MI E/O KELBAKER RD, San Bernardino, CA
Built 2017 Load: 23.7 t ADT: 502
OLD HWY 101
FairOver: NCTD, BNSF RY, AMTRAK
SAN ONOFRE STATE PARK, San Diego, CA
Built 1937 Load: 23.7 t ADT: 8,600
HAM LANE
FairOver: PIXLEY SLOUGH
0.1MI S/O WEST LANE, San Joaquin, CA
Built 1926 Load: 23.7 t ADT: 457
SAN LUISITO RD
FairOver: SAN LUISITO CREEK
0.15 MI N SR 1, San Luis Obispo, CA
Built 1957 Load: 23.7 t ADT: 100
OCEAN BLVD
FairOver: CAYUCOS CREEK
CAYUCOS, San Luis Obispo, CA
Built 1951 Load: 23.7 t ADT: 635
NORFOLK ST
FairOver: FIESTA CHANNEL
0.1 MI N/O DAY AVE, San Mateo, CA
Built 1955 Load: 23.7 t ADT: 8,800
STATE ROUTE 135
FairOver: BRADLEY CHANNEL
05-SB-135-17.55-SMRA, Santa Barbara, CA
Built 1974 Load: 23.7 t ADT: 20,900
INTERSTATE 280
FairOver: COYOTE CREEK
04-SCL-280-R1.08-SJS, Santa Clara, CA
Built 1972 Load: 23.7 t ADT: 238,000
STEVENS CR BLVD
FairOver: STEVENS CREEK
0.2 MI E/O STEVENS CYN RD, Santa Clara, CA
Built 1922 Load: 23.7 t ADT: 15,041
US HIGHWAY 101 SB
FairOver: CITRUS FAIR DRIVE
04-SON-101-R51.62-CLVD, Sonoma, CA
Built 1994 Load: 23.7 t ADT: 6,800
JAMISON RD
FairOver: MATANZAS CREEK
0.4 MI E SONOMA MTN RD, Sonoma, CA
Built 1969 Load: 23.7 t ADT: 150
WINDSOR RD
FairOver: BRANCH WINDSOR CREEK
0.3 MI N OF SILK RD, Sonoma, CA
Built 1946 Load: 23.7 t ADT: 1,500
MONTE VISTA AVENUE
FairOver: T.I.D. MAIN CANAL
0.2 MI E/O SANTA FE AVE, Stanislaus, CA
Built 1920 Load: 23.7 t ADT: 1,733
LAMBUTH ROAD
FairOver: S SAN JOAQUIN MAIN CANAL
0.6 MI S OF SCHULTZ RD, Stanislaus, CA
Built 1927 Load: 23.7 t ADT: 52
STODDARD
FairOver: M.I.D. LATERAL #4
0.2 MI W OF VIRGINIA AVE, Stanislaus, CA
Built 1938 Load: 23.7 t ADT: 2,849
NEWVILLE RD
FairOver: ORLAND IRRIGATION CANAL
1 MI NW GLENN CNTY LN E, Tehama, CA
Built 1960 Load: 23.7 t ADT: 900
FOREST AVENUE
FairOver: SYDNEY GULCH
0.2 MI SOUTH OF SR 299, Trinity, CA
Built 1949 Load: 23.7 t ADT: 1,946
SOUTH FORK ROAD
FairOver: BIG CREEK
4.8 MI N HYAMPOM RD, Trinity, CA
Built 1940 Load: 23.7 t ADT: 160
DIAGONAL ROAD 92B
FairOver: UP RR
AT SR 99 OVER SPRR, Tulare, CA
Built 1960 Load: 23.7 t ADT: 1,000
AVE 144
FairOver: TULE RIVER
0.9 MI EAST OF SR 43, Tulare, CA
Built 1948 Load: 23.7 t ADT: 470
ROAD 128
FairOver: SOUTH BRANCH TULE RIVER
0.3 MI N OF AVE 168, Tulare, CA
Built 1943 Load: 23.7 t ADT: 275
AVE 108
FairOver: LAKELAND CANAL
0.5 MI E OF SR 43, Tulare, CA
Built 1974 Load: 23.7 t ADT: 25
STATE ROUTE 49
FairOver: WOODS CREEK
10-TUO-049-17.49-SRA, Tuolumne, CA
Built 1902 Load: 23.7 t ADT: 11,500
REDWOOD RD
FairOver: SAN LEANDRO CREEK
3.2 MI N/O CASTRO VLY BLV, Alameda, CA
Built 1931 Load: 24.0 t ADT: 1,130
NELSON RD
FairOver: ASH CREEK OVERFLOW
1.3 MI W MIDWAY RD, Butte, CA
Built 1930 Load: 24.0 t ADT: 164
BROADWAY ST
FairOver: LITTLE CHICO CREEK
S OF 9TH ST, Butte, CA
Built 1920 Load: 24.0 t ADT: 4,000
ROAD 27N04
FairOver: BUTT CREEK
NO DATA ENTERED, Butte, CA
Built 1955 Load: 24.0 t ADT: 30
SHEEP RANCH RD
FairOver: O'NEIL CREEK
AT GOLD MOUNTAIN ROAD, Calaveras, CA
Built 1930 Load: 24.0 t ADT: 332
HANKINS ROAD
FairOver: GLENN-COLUSA CANAL
1 MI NE THEN N WALNUT DR, Colusa, CA
Built 1930 Load: 24.0 t ADT: 180
INTERSTATE 680
FairOver: SAN RAMON CREEK
04-CC-680-R7.43-DNVL, Contra Costa, CA
Built 1964 Load: 24.0 t ADT: 192,200
PINOLE VALLEY RD
FairOver: PINOLE CREEK
1.2 MI SE OF I-80, Contra Costa, CA
Built 1966 Load: 24.0 t ADT: 19,900
S MADERA AVENUE
FairOver: STINSON CANAL
0.5 MI S OF ELKHORN AVE, Fresno, CA
Built 1945 Load: 24.0 t ADT: 100
STATE ROUTE 299
FairOver: ESSEX LANE
01-HUM-299-R2.92, Humboldt, CA
Built 1965 Load: 24.0 t ADT: 11,200
PRICE CREEK ROAD
FairOver: PRICE CREEK
2.0 MI W BLUE SLIDE ROAD, Humboldt, CA
Built 1953 Load: 24.0 t ADT: 39
LUGO ROAD
FairOver: PALO VERDE LAGOON
0.32 MI E/O SR 78, Imperial, CA
Built 1950 Load: 24.0 t ADT: 300
Showing 9,901-9,950 of 27,040 bridges
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.
Understanding Bridge Conditions
How FHWA rates bridge condition on a 0-9 scale.
Check Your Daily Bridges
How to look up bridge condition data for bridges on your route.
Read our methodology — how this data is sourced, computed, and verified.